Add support for Apple's OPACK encoding and TLV format

1 files changed, 42 insertions, 0 deletions

diff --git a/include/libimobiledevice-glue/tlv.h b/include/libimobiledevice-glue/tlv.h
new file mode 100644
index 0000000..895c883
--- /dev/null
+++ b/include/libimobiledevice-glue/tlv.h
@@ -0,0 +1,42 @@
+/*
+ * tlv.h
+ * Simple TLV implementation.
+ *
+ * Copyright (c) 2021 Nikias Bassen, All Rights Reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#ifndef __TLV_H
+#define __TLV_H
+
+#include <stdint.h>
+
+struct tlv_buf {
+	unsigned char* data;
+	unsigned int length;
+	unsigned int capacity;
+};
+typedef struct tlv_buf* tlv_buf_t;
+
+tlv_buf_t tlv_buf_new();
+void tlv_buf_free(tlv_buf_t tlv);
+
+void tlv_buf_append(tlv_buf_t tlv, uint8_t tag, unsigned int length, void* data);
+unsigned char* tlv_get_data_ptr(const void* tlv_data, void* tlv_end, uint8_t tag, uint8_t* length);
+int tlv_data_get_uint(const void* tlv_data, unsigned int tlv_length, uint8_t tag, uint64_t* value);
+int tlv_data_get_uint8(const void* tlv_data, unsigned int tlv_length, uint8_t tag, uint8_t* value);
+int tlv_data_copy_data(const void* tlv_data, unsigned int tlv_length, uint8_t tag, void** out, unsigned int* out_len);
+
+#endif /* __TLV_H */